Capcom: E3 isn’t really for third-parties
“For Capcom, we’re pleased with the coverage we’ve received though I think we fared better than some of our competitors. That said, E3 now has become more of a first party battleground than it is a third party event and in that regard I think it still has significant value. Most third parties hold our own events where we made most of our major announcements in a more focused environment.” – Christian Svensson
Nintendo, Microsoft, and Sony all have a huge presence at E3, but I don’t think that means it’s a place for third-parties to disregard the event. Then again, E3 might might evaporate in the near future, since the media’s reaction to the event in general was not too encouraging.